710 Black Diamond St, Pittsburg, CA 94565 Property Records

Contra Costa County property record for 710 Black Diamond St, Pittsburg, CA 94565

Property Summary

Property Type	Public School (Administration, Campus, Dorms, Instruction)
Details	2,497 sqft · built 1925
Lot Size	0.169 acres (7,361 sqft)
Owner	Company Name on Record
Last Sale	$260,000 (May 2016)
Tax Bill	$1,335 (2025)
Flood Zone	Zone X (minimal risk)
APN	`085-380-002-7`

Property Details

APN / Parcel Number

Primary APN	`085-380-002-7`
Alternative APN	`085-380-002`

Interior

Total Rooms	1 Room
Stories	1 Story
Building Area	2,497 sqft Gross Area
1st Floor Area	2,497 sqft

Exterior

Year Built	Built 1925
Effective Year Built	Effective 1925
Lot Area	7,361 sqft (0.169 acres)

Location & Zoning

Street Address	710 BLACK DIAMOND ST
City	PITTSBURG
State	CA
Zip	94565-2148
Property Category	Public Works
Property Type	Public Works > Public School (Administration, Campus, Dorms, Instruction)
Legal Description	WESTSIDE REDEV REV TO AC MB 398-41 PCL B
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	ANTIOCH-PITTSBURG
Census Block Group	3
Census Block	3013
Census Tract	309000

Owner

Source: Contra Costa County records, as of July 14, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	Company Name on Record
Mailing Address	710 BLACK DIAMOND ST, PITTSBURG, CA 94565-2148
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	May 27, 2016 · Amount on Record
Deed Sale	May 27, 2016 · Amount on Record
Deed Document Number	2016103423
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Municipality	Pittsburg City
Unified School District	Pittsburg Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$313,934 (+2%) Land $90,556 Building $223,378
2025	$1,335.00 (+4.13%) Additional exemption filed	$307,780 (+4.04%) Land $88,781 Building $218,999
2023	$1,282.00 Additional exemption filed	$295,831 Land $85,335 Building $210,496
2022	$1,282.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	5 in force
Nearby Flood Claims	1 (2023)
Most Recent Claim	Jan 2023 · Severe Winter Storms, Flooding, Landslides, And Mudslides

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Not rated no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	CITY OF PITTSBURG serves 62,500 people · EPA ID CA0710008
Water Source	Purchased surface water from CONTRA COSTA WATER DISTRICT
Last State Inspection	Apr 2023
Lead	Under 1 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 540 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
AT&T DSL · Fiber, Fixed Wireless in parts of the area	100 / 20